This is a small library intended to make it easier to deal with HTML attributes in View Components. It is based on https://github.com/x-govuk/html-attributes-utils
It uses refinements for Hash that allow:
- deep merging while protecting default values from being overwritten
- tidying hashes by removing key/value pairs that have empty or nil values
class MyViewComponent < ViewComponent::Base
include Katalyst::HtmlAttributes
def initialize(**html_attributes)
super
end
def call
tag.div(**html_attributes)
end
def default_html_attributes
{
class: "my-class"
}
end
endYou can also define your own named attributes:
class MyViewComponent < ViewComponent::Base
include Katalyst::HtmlAttributes
define_html_attributes :link_attributes, :button_attributes
def initialize(link:, button:, **html_attributes)
super(**html_attributes)
update_link_attributes(**link) if link
update_button_attributes(**button) if button
end
def call
tag.div(**html_attributes) do
tag.a(**link_attributes) do
"Link"
end +
tag.button(**button_attributes) do
"Button"
end
end
end
def default_html_attributes
{
class: "my-class"
}
end
def default_link_attributes
{
class: "my-link"
}
end
def default_button_attributes
{
class: "my-button"
}
end
end